CN215755580U

CN215755580U - Unreeling and belt cutting device of belt discharging machine

Info

Publication number: CN215755580U
Application number: CN202122169334.XU
Authority: CN
Inventors: 杨弘
Original assignee: Tianjin Himind Medical Technology Co ltd
Current assignee: Tianjin Himind Medical Technology Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-02-08
Anticipated expiration: 2031-09-08

Abstract

The utility model relates to an unwinding and belt cutting device of a belt discharging machine. Comprises an unreeling box assembly, wherein a reel changing window is arranged on the side surface of the unreeling box assembly, and a tape outlet is arranged at the front end of the unreeling box assembly; an operation notch and a turnover buckle cover device are arranged at the top of the unreeling box assembly; an inner mounting frame is arranged in the unreeling box assembly, a driving roller device is arranged on the inner mounting frame, a belt guide device fixedly connected with the inner mounting frame is arranged at the upstream of the driving roller device, and a belt cutting device clamped with the inner mounting frame is arranged at the downstream of the driving roller device; the driven roller device is arranged on the turnover buckle cover device; the belt cutting device comprises a cutter sliding seat, an upper cutter is connected to the cutter sliding seat, and an outer limiting piece is arranged on the outer side of the cutter sliding seat; a lower cutter is connected between the outer limiting piece and the cutter sliding seat in a sliding manner; the cutting machine also comprises an eccentric wheel device and a cutting motor. According to the utility model, a plurality of core devices are integrally installed to form a unit, so that the modularization degree of the unreeling and tape cutting device is improved, and the whole volume of the tape discharging machine is reduced.

Description

Unreeling and belt cutting device of belt discharging machine

Technical Field

The utility model belongs to the technical field of medical facilities, and particularly relates to an unwinding and belt cutting device of a belt discharging machine.

Background

Tourniquets, also known as tourniquets, are major tools used for venous blood collection, intravenous injection, hemostasis, and the like. The blood vessel puncture-preventing hemostatic bag can temporarily block venous blood flow by binding the part to be punctured, is also used for a simple and effective hemostatic method in emergency treatment of limb massive hemorrhage, and achieves the purpose of hemostasis in a short time by blocking blood circulation through compressing the blood vessel. With the development of the medical industry, the wide and flat disposable tourniquet replaces the traditional hose-type tourniquet, and the common materials of the disposable tourniquet mainly comprise natural rubber, synthetic rubber, natural latex, TEP (thermoplastic elastomer) and the like. For convenience of use, the disposable tourniquet is usually made into a strip unit form or a multi-section connected form; wherein, for convenient packaging, the disposable tourniquet with a plurality of connected sections is usually packaged in a roll shape.

In order to prevent dust and facilitate taking, medical staff usually puts the disposable tourniquet in a roll shape in a storage box, pulls the tourniquet to a proper length manually when using the tourniquet, then pulls the tourniquet along a nick, and further pulls the tourniquet forcefully to obtain a desired tourniquet with a strip as a unit. The tape dispenser usually comprises a box body in which a tourniquet coil can be inserted, an unwinding device consisting of a driving roller, a driven roller and a roller rotating motor is arranged in the box body, and a tape cutting device consisting of a cutter and a cutter motor and positioned at a discharge port is arranged at the downstream of the unwinding device. The working principle of the tape discharging machine is as follows: unwinding device unreels the tourniquet roll to drive the tourniquet and cut the transmission of belting direction towards, the cutter is longitudinal movement under the drive of cutter motor, and then cuts the tourniquet of unwinding device transmission. Therefore, in the belt discharging machine, the unwinding device and the belt cutting device play a vital role.

However, in the above-mentioned tape discharging machine, the unwinding device and the tape cutting device are dispersedly installed in the box body, and during the assembling process, precise positioning is required, which is inconvenient for installation and later maintenance; in addition, unwinding device and belt cutting device are distributed installation, also require the box body to have great space, and then increased the complete machine volume of telling the tape unit, increased the area occupied of complete machine.

SUMMERY OF THE UTILITY MODEL

The unwinding and cutting device of the tape discharging machine is compact and reasonable in structural design and high in modularization degree, and aims to solve the technical problems in the prior art.

The technical scheme adopted by the utility model for solving the technical problems in the prior art is as follows: an unwinding and tape cutting device of a tape discharging machine comprises an unwinding box assembly for inserting a tourniquet roll, wherein a roll changing window is arranged on the side surface of the unwinding box assembly, and a tape outlet is formed in the front end of the unwinding box assembly; an operation notch is formed in the top of the unreeling box assembly, and a turning buckle cover device is buckled at the operation notch; an inner mounting frame detachably connected with the inner cavity of the unreeling box assembly is arranged in the inner cavity of the unreeling box assembly, a driving roller device is arranged on the inner mounting frame, a belt guide device fixedly connected with the inner mounting frame is arranged at the upstream of the driving roller device, and a belt cutting device clamped with the inner mounting frame is arranged at the downstream of the driving roller device; the tourniquet cutting device comprises a turnover buckle cover device, a driven roller device and a driving roller device, wherein the driven roller device and the driving roller device are arranged on the turnover buckle cover device and can drive the tourniquet to move towards the tourniquet cutting device under the combined action; the belt cutting device comprises a cutter sliding seat clamped with the inner mounting frame, an upper cutter is connected to the cutter sliding seat through a mounting pin shaft, an outer limiting piece is arranged on the outer side of the cutter sliding seat, and the outer limiting piece can press and limit the upper cutter and the lower cutter; a lower cutter is connected between the outer limiting piece and the cutter sliding seat in a sliding manner; the cutting machine also comprises an eccentric wheel device and a cutting motor which are used for driving the lower cutting knife to move longitudinally.

The utility model has the advantages and positive effects that: the utility model provides an unwinding and tape cutting device of a tape discharging machine, which can quickly load a tourniquet roll by arranging an unwinding box assembly, an operation notch and a turnover buckle cover device; the tourniquet can be clamped and conveyed by arranging the driving roller device and the driven roller device, and the unreeling operation can be smoothly carried out by matching with the belt guide device; the tourniquet can be cut off by arranging the belt cutting device, so that a tourniquet section meeting the requirements can be obtained, wherein the belt cutting device adopts an eccentric wheel device and a cutting motor as cutting driving, the phenomenon that a cutter is blocked in the cutting process can be avoided, and the working efficiency is improved; by arranging the inner mounting frame, the belt cutting device, the driving roller device and the belt guiding device can be mounted in an integrated manner, so that the plurality of core devices form a unit by themselves, and the modularization degree of the unwinding belt cutting device is improved; in the later installation and maintenance process, the core device can be maintained only by disassembling and installing the inner installation frame without accurately positioning and installing each device; in addition, compared with the traditional distributed installation, the integrated installation mode in the utility model ensures that the space occupied by the core device in the unreeling box assembly is smaller, so that the overall volume of the unreeling box assembly can be as small as possible, and the purpose of reducing the overall volume of the tape-ejecting machine is realized.

Preferably: the roll-changing window is provided with a side cover, and the outer side of the side cover is provided with a side cover locking device which locks and connects the side cover and the turnover buckle cover device.

Preferably: the unwinding box assembly comprises a first shell and a second shell which are in butt joint and buckled, and a front end shell is clamped between the first shell and the second shell; the reel changing window is arranged on the second shell, and the tape outlet is arranged on the front end shell; an unreeling cylinder corresponding to the reel changing window is integrally formed on the inner wall of the first shell.

Preferably: the overturning buckle cover device comprises an overturning buckle cover hinged with the unreeling box assembly, a buckle cover seat is fixedly connected on the overturning buckle cover, and the driven roller device is fixedly connected with the buckle cover seat; the cover turning and locking device is arranged on the cover turning seat and is used for locking and connecting the cover turning and locking device with the unreeling box assembly.

Preferably: the driving roller device comprises a driving belt feeding roller rotationally connected with the inner mounting frame and a driving roller motor fixedly connected with the inner mounting frame and used for driving the driving belt feeding roller to rotate; the driven roller device comprises a driven roller seat fixedly connected with the turnover buckle cover device, and a driven belt conveying roller is rotatably connected to the driven roller seat.

Preferably: the eccentric wheel device comprises an eccentric wheel connected with an output shaft of the cutting motor, an eccentric hole is formed in the eccentric wheel, a poking rod is inserted into the eccentric hole and penetrates through a strip-shaped hole formed in the lower portion of the lower cutting knife and is connected with the strip-shaped hole in a sliding mode.

Preferably: the belt guide device comprises a guide seat fixedly connected with the inner mounting frame, a guide roller is rotatably connected onto the guide seat, and a belt limiting block fixedly connected onto the guide seat and positioned at the downstream of the guide roller.

Preferably: the side cover locking device comprises a locking knob detachably connected with the unreeling box assembly, a locking spring is sleeved on the locking knob, and two ends of the locking spring are respectively in abutting contact with the end face of the locking knob and the side cover.

Preferably: the flip cover locking device comprises two groups of buckling pieces in sliding connection with the buckling cover seat, and a buckling part is integrally formed at the bottom of each buckling piece and penetrates through a notch formed in the buckling cover seat and can transversely move in the notch; spring positioning columns are arranged on the opposite inner side surfaces of the two groups of buckling pieces, and buckling springs are sleeved on the two groups of spring positioning columns; a button penetrating through the side wall of the turnover buckle cover is arranged on the outer side surface of the buckle piece.

Drawings

FIG. 1 is a perspective view of the internal structure of the present invention;

FIG. 2 is a schematic view of the assembly of the inner mount, the tape cutting apparatus, the drive roller apparatus and the tape guide of the present invention;

FIG. 3 is a schematic perspective view of the tape cutting apparatus of the present invention;

FIG. 4 is another angular configuration of the tape cutting apparatus portion of the present invention;

fig. 5 is an exploded view illustrating the unwinding box assembly according to the present invention;

FIG. 6 is a schematic view of the assembly of the flip cover device and the driven roller device of the present invention;

FIG. 7 is a schematic view of the internal structure of the flip-top closure assembly of the present invention;

FIG. 8 is a schematic perspective view of the present invention;

fig. 9 is a perspective view of the side cover locking apparatus of the present invention.

In the figure: 1. an unwinding box assembly; 1-1, a first shell; 1-2, a second shell; 1-3, a front end shell; 1-4, unreeling a cylinder; 2. a roll change window; 3. a tape outlet; 4. an inner mounting frame; 5. a tape cutting device; 5-1, a cutter sliding seat; 5-2, mounting a pin shaft; 5-3, feeding a cutter; 5-4, inner gasket; 5-5, lower cutter; 5-6 parts of an outer limiting sheet; 5-7, an in-place sensor; 5-8, an eccentric wheel device; 5-8-1, a poke rod; 5-8-2, an eccentric wheel; 5-8-3, an in-place induction sheet; 5-9, a motor mounting seat; 5-10, cutting a motor; 6. a drive roll device; 6-1, a drive roll motor; 6-2, driving belt feeding rollers; 7. a tape guide; 7-1, a guide seat; 7-2, a guide roller; 7-3, with a limiting block; 8. a driven roller device; 8-1, a driven roller seat; 8-2, driven belt feeding rollers; 9. an operating notch; 10. turning over the buckle cover device; 10-1, turning over the buckle cover; 10-2, buckling a cover seat; 10-3, a flip locking device; 10-3-1, a fastener; 10-3-2, a buckle spring; 11. a side cover locking means; 11-1, a locking knob; 11-2, a locking spring; 12. a side cover.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail as follows:

referring to fig. 1, the unwinding and cutting device of the tape discharging machine of the present invention includes an unwinding box assembly 1 for inserting a tourniquet roll, wherein a roll changing window 2 is disposed on a side surface of the unwinding box assembly 1, and a tape outlet 3 is disposed at a front end of the unwinding box assembly. Referring to fig. 5 further, in the present embodiment, the unwinding box assembly 1 includes a first casing 1-1 and a second casing 1-2 that are butted and fastened, and the reel changing window 2 is opened on the second casing 1-2. The inner side surfaces of the first shell 1-1 and the second shell 1-2 are respectively provided with a plurality of groups of connecting columns with threaded holes, and the first shell 1-1 and the second shell 1-2 are fixedly connected through screws penetrating through the connecting columns.

A front end shell 1-3 is clamped between the first shell 1-1 and the second shell 1-2, and a belt outlet 3 is formed in the front end shell 1-3; furthermore, the inner parts of the front ends of the first shell 1-1 and the second shell 1-2 are respectively provided with a clamping groove, the two groups of clamping grooves are oppositely arranged, and the edge of the front end shell 1-3 is inserted into the clamping grooves.

As shown in fig. 5, in order to facilitate installation of the tourniquet coil, in this embodiment, an unwinding cylinder 1-4 corresponding to the reel changing window 2 is integrally formed on an inner wall of the first casing 1-1, an annular vertical plate integrally formed with the inner wall of the first casing 1-1 is disposed on a periphery of the unwinding cylinder 1-4, in an actual working process, the tourniquet coil is located in a space formed by the annular vertical plate, and the annular vertical plate provides a limited space for the tourniquet coil, so that an operator can conveniently load the tourniquet coil. The annular vertical plate is provided with a notch for the tourniquet to pass through.

As shown in fig. 8, in the present embodiment, in order to perform the packing and dust-proof operations on the loaded tourniquet roll, the present embodiment further includes a side cover 12 disposed at the roll change window 2, and in order to monitor the usage amount of the tourniquet roll, a window extending along the radial direction is opened on the side cover 12. A through hole for the unwinding cylinder 1-4 to pass through is arranged in the middle of the side cover 12.

A side cover locking device 11 for locking and connecting the side cover 12 and the flip cover device 10 is provided on the outer side of the side cover 12. Referring to fig. 9, the side cover locking device 11 includes a locking knob 11-1 detachably connected to the unwinding cylinder 1-4 in the unwinding box assembly 1, a locking spring 11-2 is sleeved on the locking knob 11-1, and two ends of the locking spring 11-2 are respectively in abutting contact with an end surface of the locking knob 11-1 and the side cover 12.

The locking knob 11-1 is rotatably connected to the outer end of the unreeling cylinder 1-4, the locking knob 11-1 and the unreeling cylinder 1-4 can be connected by threads, or a pin groove (as shown in fig. 5) can be formed in the end of the unreeling cylinder 1-4, a bayonet lock is arranged on the locking knob 11-1, and another bayonet lock on the locking knob 11-1 is embedded into the pin groove by rotating, so that the fixed connection between the locking knob and the unreeling cylinder is realized. After the locking knob 11-1 is connected with the unreeling cylinder 1-4, the locking spring 11-2 enables the side cover 12 to be fixed on the unreeling cylinder 1-4 in a compression joint mode.

A control circuit board (not shown) is arranged in the inner cavity of the unreeling box assembly 1, and a plug-in terminal electrically connected with a power supply is inserted into the control circuit board. In addition, a power switch electrically connected with the control circuit board is arranged on the unreeling box assembly 1.

Referring further to fig. 1, in the present embodiment, an operation notch 9 is formed in the top of the unwinding box assembly 1, a flip cover device 10 is fastened to the operation notch 9, and the operation notch 9 corresponds to the above mentioned notch on the annular vertical plate. Through setting up operation notch 9, provide the space of activity for operating personnel's finger, make things convenient for the free end of staff tractive guide tourniquet, make it stretch out by going out area mouth 3 behind operation notch 9, accomplish the loading of tourniquet roll.

As shown in fig. 6, the flip cover assembly 10 includes a flip cover 10-1 hinged to the unwinding box assembly 1, the flip cover 10-1 is hinged to an edge of the operation slot 9, and a torsion spring is disposed at the hinged portion and provides elasticity for maintaining the flip cover 10-1 in an open state. A cover fastening seat 10-2 is fixedly connected on the turnover cover fastening 10-1, and a driven roller device 8 is fixedly connected with the cover fastening seat 10-2; the cover turning and locking device 10-3 is arranged on the cover turning seat 10-2 and used for locking and connecting the cover turning and locking device 10 and the unreeling box assembly 1.

Further referring to fig. 7, the flip cover locking device 10-3 includes two sets of buckling members 10-3-1 slidably connected to the buckling base 10-2, wherein a buckling portion is integrally formed at the bottom of the buckling member 10-3-1, and the buckling portion penetrates through a notch formed in the buckling base 10-2 and can move laterally in the notch; spring positioning columns are arranged on the opposite inner side surfaces of the two groups of buckling pieces 10-3-1, and buckling springs 10-3-2 are sleeved on the two groups of spring positioning columns; a button penetrating through the side wall of the turnover buckle cover 10-1 is arranged on the outer side surface of the buckle piece 10-3-1. After the turning buckle cover 10-1 is buckled, the clamping hook part on the clamping buckle part 10-3-1 is hooked on the frame inside the unreeling box assembly 1, the turning buckle cover 10-1 can be disconnected with the frame inside the unreeling box assembly 1 by pressing the button, and then the turning buckle cover 10-1 is opened under the action of the torsion spring.

In order to improve the rigidity of the tape cutting device and facilitate the installation of the device inside the unwinding box assembly 1, as shown in fig. 1, the embodiment further includes an inner mounting frame 4 detachably connected to the inner cavity of the unwinding box assembly 1, and a driving roller device 6 is arranged on the inner mounting frame 4, further referring to fig. 2, wherein the driving roller device 6 includes a driving tape feeding roller 6-2 rotatably connected to the inner mounting frame 4, and a driving roller motor 6-1 fixedly connected to the inner mounting frame 4 and used for driving the driving tape feeding roller 6-2 to rotate; the driving roller motor 6-1 can drive the driving belt conveying roller 6-2 to rotate, and further provides power for conveying the tourniquet. The control end of the drive roll motor 6-1 is electrically connected with the control circuit board.

With further reference to fig. 7, in order to unwind the tourniquet and transmit the tourniquet to the tape outlet 3 for a preset distance, the present embodiment further includes a driven roller device 8 disposed on the flip-cover device 10, and the driven roller device 8 and the driving roller device 6 cooperate to drive the tourniquet to advance toward the tape cutting device 5; as shown in FIG. 7, in the present embodiment, the driven roller device 8 includes a driven roller seat 8-1 fixed to the flip-top cover device 10, and a driven belt feeding roller 8-2 is rotatably connected to the driven roller seat 8-1. In the transmission process, the tourniquet is clamped between the driving tape feeding roller 6-2 and the driven tape feeding roller 8-2 and moves forwards along with the rotation of the driving tape feeding roller 6-2, so that the free end of the tourniquet extends out of the unreeling box assembly 1. After the turnover buckle cover device 10 is opened, the driving tape feeding roller 6-2 is separated from the driven tape feeding roller 8-2, the arrangement is convenient for operators to load tourniquet rolls, and the tourniquet can be clamped and conveyed after the turnover buckle cover device 10 is buckled only by allowing the tourniquet to pass above the driving tape feeding roller 6-2.

In order to cut the tourniquet clamped and conveyed by the driving tape conveying roller 6-2 and the driven tape conveying roller 8-2, the embodiment also comprises a tape cutting device 5 arranged at the downstream of the driving tape conveying roller 6-2. In order to reduce the volume of the unreeling box assembly 1 to the maximum extent and further reduce the overall volume of the tape dispenser, the tape cutting device 5 is mounted on the inner mounting frame 4 in the embodiment, so that the device with the unreeling function and the device with the tape cutting function inside the unreeling box assembly 1 are integrated, and the modularization degree of the device is improved.

With further reference to fig. 1 and 2, in order to guide the tourniquet transmitted by the driving tape feeding roller 6-2 and the driven tape feeding roller 8-2, so that only the tape can be smoothly unreeled, the embodiment further comprises a tape guiding device 7 arranged upstream of the driving roller device 6, and the tape guiding device 7 is connected with the inner mounting frame 4.

Through the setting, this embodiment will take cutting device 5, drive roll device 6 and take guiding device 7 integrated installation including on mounting bracket 4, at the in-process of installation maintenance in later stage, only need dismantle and install internal mounting bracket 4, can maintain this core device and the subassembly that unreels in the cutting device. In addition, compare with traditional distributed installation, the integrated form mounting means in this embodiment for unreel the space that core device and subassembly inside box assembly 1 occupy less, and then make the whole volume of unreeling box assembly 1 can be as little as possible, and this complete machine volume that just can make spitting the tape unit can be less, is convenient for carry it to suitable position and uses.

As shown in fig. 2, the band guide device 7 comprises a guide seat 7-1 fixedly connected with the inner mounting frame 4, a guide roller 7-2 is rotatably connected to the guide seat 7-1, in addition, the guide seat 7-1 is provided with an arc-shaped guide surface, the guide roller 7-2 is arranged at the arc-shaped guide surface, a band limiting block 7-3 is arranged at the discharge end of the arc-shaped guide surface, the band limiting block 7-3 is arranged at the downstream of the guide roller 7-2, and a limiting channel for a tourniquet to pass through is arranged between the band limiting block 7-3 and the guide seat 7-1; when loading the tourniquet coil, an operator needs to pull the free end of the tourniquet to enable the tourniquet coil to sequentially pass through the guide roller 7-2 and the limiting channel, then the tourniquet coil passes through the active tape feeding roller 6-2 and the lower cutter 5-5, and extends out of the unwinding box assembly 1 through the tape outlet 3 arranged on the unwinding box assembly 1, so that the tourniquet coil can be smoothly unwound, and subsequent tape cutting operation is facilitated.

Further referring to fig. 3 and 4, in the present embodiment, the tape cutting device 5 includes a cutter sliding seat 5-1 engaged with the inner mounting frame 4, a mounting pin 5-2 is inserted into an upper portion of the cutter sliding seat 5-1, and an upper cutter 5-3 is connected to the upper cutter sliding seat through the mounting pin 5-2, the upper cutter 5-3 is L-shaped, a lower cutter 5-5 engaged with the upper cutter 5-3 is disposed below the upper cutter 5-3, and the lower cutter 5-5 is in sliding contact with the upper cutter 5-3. The belt cutting device 5 also comprises an inner gasket 5-4 inserted in a notch formed in the side wall of the belt cutting device, and the lower cutter 5-5 is in sliding contact with the inner gasket 5-4. In addition, two opposite inner side surfaces of the cutter sliding seat 5-1 are in sliding contact with the lower cutter 5-5, so that the lower cutter 5-5 is guided.

The belt cutting device 5 also comprises an outer limiting piece 5-6 arranged on the outer side of the cutter sliding seat 5-1, and the outer limiting piece 5-6 can limit the lower cutter 5-5 so as to prevent the lower cutter 5-5 from falling off; meanwhile, the outer limiting sheet 5-6 can press and limit the upper cutter 5-3, in order to realize the pressing and limiting function of the outer limiting sheet 5-6, a through hole for the installation pin shaft 5-2 to pass through is formed in the upper portion of the outer limiting sheet 5-6, meanwhile, the upper portion of the outer limiting sheet 5-6 is bent and has certain elasticity, and then the inner side face of the lower end portion of the upper cutter 5-3 is pressed onto the outer side face of the lower cutter 5-5, so that the lower cutter 5-5 and the upper cutter 5-3 can be matched for use, and further the tourniquet is cut off. The upper part of the outer limiting sheet 5-6 is provided with a notch for the tourniquet to pass through, and the notch corresponds to the cutting stations of the lower cutter 5-5 and the upper cutter 5-3.

As shown in figure 3, the belt cutting device 5 further comprises an eccentric wheel device 5-8 for driving the lower cutting knife 5-5 to move longitudinally, a cutting motor 5-10 and a motor mounting seat 5-9 clamped on the inner mounting frame 4, wherein the cutting motor 5-10 is fixedly connected with the motor mounting seat 5-9, the eccentric wheel device 5-8 comprises an eccentric wheel 5-8-2 connected with an output shaft of the cutting motor 5-10, an eccentric hole is formed in the eccentric wheel 5-8-2, a poking rod 5-8-1 is inserted into the eccentric hole, and the poking rod 5-8-1 penetrates through a strip-shaped hole formed in the lower part of the lower cutting knife 5-5 and is connected with the strip-shaped hole in a sliding manner. The cutting motor 5-10 is started to drive the eccentric wheel 5-8-2 to rotate, the rotating eccentric wheel 5-8-2 can drive the poke rod 5-8-1 connected with the eccentric wheel to perform revolution motion around the output shaft of the cutting motor 5-10, and as the poke rod 5-8-1 is inserted in a strip-shaped hole formed in the lower part of the lower cutting knife 5-5 and the poke rod 5-8-1 is in sliding contact with the strip-shaped hole, the poke rod 5-8-1 in revolution motion can drive the lower cutting knife 5-5 to longitudinally reciprocate and then is matched with the upper cutting knife 5-3, the tourniquet can be cut off. Compared with the traditional method of driving the cutter to longitudinally move by adopting the lead screw transmission assembly, the eccentric wheel device 5-8 in the embodiment can drive the lower cutter 5-5 to smoothly longitudinally reciprocate, so that the phenomenon of blockage is avoided, and the failure rate is low.

As shown in fig. 3, in order to improve the automation degree of the tape unwinding and cutting device, the tape cutting device 5 further comprises an in-place sensor 5-7 connected to the motor mounting seat 5-9, wherein the in-place sensor 5-7 adopts a photoelectric sensor; an in-place induction sheet 5-8-3 matched with the in-place sensor 5-7 is arranged on the peripheral wall of the eccentric wheel 5-8-2. The in-place sensor 5-7 is matched with the in-place sensing piece 5-8-3 for use, so that the start and stop of the cutting motor 5-10 can be controlled. The method specifically comprises the following steps: the cutting motor 5-10 is started under the control of the control circuit board, the running cutting motor 5-10 drives the eccentric wheel 5-8-2 to rotate, the eccentric wheel 5-8-2 rotates for a circle to realize one reciprocating movement of the lower cutter 5-5, and further realize one cutting operation, after the eccentric wheel 5-8-2 rotates for a circle to reset, the in-place induction sheet 5-8-3 triggers the in-place sensor 5-7 to generate a signal and transmit the signal to the control circuit board, and the control circuit board receives the signal to control the cutting motor 5-10 to stop running.

In order to improve the safety of the unreeling and tape cutting device, in the embodiment, a photoelectric sensor for detecting the on-off state of the flip cover device 10 is arranged in the inner cavity of the unreeling box assembly 1, and the photoelectric sensor is electrically connected with the control circuit board; and an induction plate matched with the photoelectric sensor is arranged on the driven roller device 8.

When the overturning buckle cover device 10 is opened, the induction plate touches the photoelectric sensor, the photoelectric sensor generates a signal and transmits the signal to the control circuit board, and the control circuit board receives the signal and then controls the cutting motor 5-10 to be always in a stop state, so that the belt cutting action is avoided when an operator loads a tourniquet belt, and the operator is prevented from being accidentally injured.

The using method comprises the following steps:

observing the using amount of the hemostatic tape roll in the unreeling box assembly 1 through a window on the side cover 12, if the using amount of the hemostatic tape roll is not enough, carrying out reel change operation, namely pressing a buckle piece 10-3-1 in a flip cover locking device 10-3, opening the flip cover locking device 10, then rotating and taking down the side cover locking device 11, then taking down the side cover 12, and opening the reel change window 2; after the side cover 12 is taken down, the old tourniquet coil can be taken down, a new tourniquet coil is arranged on the unreeling cylinder 1-4, and then the free end of the tourniquet is manually drawn to pass through the belt guide device 7, the driving roller device 6 and the belt cutting device 5 in sequence and then penetrate out of the belt outlet 3; after the above operations are completed, the upper side cover 12 and the side cover locking device 11 are reinstalled, and then the upper turning buckle cover device 10 is buckled;

when the tourniquet needs to be used, a power key needs to be pressed to trigger the unreeling and tape cutting device, at the moment, the control circuit board starts the driving roller motor 6-1, and the driving roller device 6 and the driven roller device 8 act together to transmit the tourniquet to a preset length towards the tape outlet 3; after the tourniquet is conveyed for one time, the control circuit board starts the cutting motor 5-10, the in-place sensor 5-7 controls the cutting motor 5-10 to run for a preset time, the eccentric wheel device 5-8 drives the lower cutter 5-5 to move longitudinally under the action of the cutting motor 5-10, and the lower cutter 5-5 moving longitudinally performs one-time cutting action in cooperation with the upper cutter 5-3 to cut the tourniquet to form a tourniquet section.

Claims

1. The utility model provides a spit unreeling of tape unit and cut belting, characterized by: comprises an unreeling box assembly (1) for inserting a tourniquet roll, wherein a roll changing window (2) is arranged on the side surface of the unreeling box assembly (1), and a tape outlet (3) is arranged at the front end of the unreeling box assembly; an operation notch (9) is formed in the top of the unreeling box assembly (1), and a turnover cover-buckling device (10) is buckled at the operation notch (9); an inner mounting frame (4) detachably connected with the inner cavity of the unreeling box assembly (1) is arranged in the inner cavity of the unreeling box assembly, a driving roller device (6) is arranged on the inner mounting frame (4), a belt guide device (7) fixedly connected with the inner mounting frame (4) is arranged at the upstream of the driving roller device (6), and a belt cutting device (5) clamped with the inner mounting frame (4) is arranged at the downstream of the driving roller device; the tourniquet cutting device further comprises a driven roller device (8) arranged on the turnover buckle cover device (10), and the tourniquet can be driven to advance towards the tourniquet cutting device (5) under the combined action of the driven roller device (8) and the driving roller device (6);

the belt cutting device (5) comprises a cutter sliding seat (5-1) clamped with the inner mounting frame (4), an upper cutter (5-3) is connected to the cutter sliding seat (5-1) through a mounting pin shaft (5-2), an outer limiting piece (5-6) is arranged on the outer side of the cutter sliding seat (5-1), and the outer limiting piece (5-6) can press and limit the upper cutter (5-3) and the lower cutter (5-5); a lower cutter (5-5) is connected between the outer limiting piece (5-6) and the cutter sliding seat (5-1) in a sliding way; the device also comprises an eccentric wheel device (5-8) and a cutting motor (5-10) which are used for driving the lower cutting knife (5-5) to move longitudinally.

2. The unwinding and cutting device of the tape discharging machine as claimed in claim 1, wherein: a side cover (12) is arranged at the roll changing window (2), and a side cover locking device (11) for locking and connecting the side cover (12) and the turnover cover fastening device (10) is arranged at the outer side of the side cover (12).

3. The unwinding and cutting device of the tape discharging machine as claimed in claim 1, wherein: the unreeling box assembly (1) comprises a first shell (1-1) and a second shell (1-2) which are butted and buckled, and a front end shell (1-3) is clamped between the first shell (1-1) and the second shell (1-2); the roll changing window (2) is arranged on the second shell (1-2), and the tape outlet (3) is arranged on the front end shell (1-3); an unreeling cylinder (1-4) corresponding to the reel changing window (2) is integrally formed on the inner wall of the first shell (1-1).

4. The unwinding and cutting device of the tape discharging machine as claimed in claim 1, wherein: the overturning buckle cover device (10) comprises an overturning buckle cover (10-1) hinged with the unreeling box assembly (1), a buckle cover seat (10-2) is fixedly connected to the overturning buckle cover (10-1), and the driven roller device (8) is fixedly connected with the buckle cover seat (10-2); the cover turning device is characterized by further comprising a cover turning locking device (10-3) which is arranged on the cover turning seat (10-2) and used for locking and connecting the cover turning device (10) and the unreeling box assembly (1).

5. The unwinding and cutting device of the tape discharging machine as claimed in claim 1, wherein: the driving roller device (6) comprises a driving belt feeding roller (6-2) rotatably connected with the inner mounting frame (4), and further comprises a driving roller motor (6-1) fixedly connected with the inner mounting frame (4) and used for driving the driving belt feeding roller (6-2) to rotate; the driven roller device (8) comprises a driven roller seat (8-1) fixedly connected with the turnover buckle cover device (10), and a driven belt conveying roller (8-2) is rotatably connected to the driven roller seat (8-1).

6. The unwinding and cutting device of the tape discharging machine as claimed in claim 1, wherein: the eccentric wheel device (5-8) comprises an eccentric wheel (5-8-2) connected with an output shaft of a cutting motor (5-10), an eccentric hole is formed in the eccentric wheel (5-8-2), a poke rod (5-8-1) is inserted into the eccentric hole, and the poke rod (5-8-1) penetrates through a strip-shaped hole formed in the lower portion of the lower cutting knife (5-5) and is connected with the strip-shaped hole in a sliding mode.

7. The unwinding and cutting device of the tape discharging machine as claimed in claim 1, wherein: the belt guide device (7) comprises a guide seat (7-1) fixedly connected with the inner mounting frame (4), a guide roller (7-2) is rotatably connected to the guide seat (7-1), and a belt limiting block (7-3) fixedly connected to the guide seat (7-1) and positioned at the downstream of the guide roller (7-2).

8. The unwinding and cutting device of the tape discharging machine as claimed in claim 2, characterized in that: the side cover locking device (11) comprises a locking knob (11-1) detachably connected with the unreeling box assembly (1), a locking spring (11-2) is sleeved on the locking knob (11-1), and two ends of the locking spring (11-2) are respectively in abutting contact with the end face of the locking knob (11-1) and the side cover (12).

9. The unwinding and cutting device of the tape discharging machine as claimed in claim 4, wherein: the flip cover locking device (10-3) comprises two groups of buckling pieces (10-3-1) which are in sliding connection with the buckle cover seat (10-2), and a buckling part is integrally formed at the bottom of each buckling piece (10-3-1), penetrates through a notch formed in the buckle cover seat (10-2) and can transversely move in the notch; spring positioning columns are arranged on the opposite inner side surfaces of the two groups of buckling pieces (10-3-1), and buckling springs (10-3-2) are sleeved on the two groups of spring positioning columns; a button penetrating through the side wall of the turnover buckle cover (10-1) is arranged on the outer side surface of the buckle piece (10-3-1).

10. The unwinding and cutting device of the tape discharging machine as claimed in claim 1, wherein: the belt cutting device (5) further comprises a motor mounting seat (5-9) clamped on the inner mounting frame (4), a cutting motor (5-10) is fixedly connected with the motor mounting seat (5-9), and an in-place sensor (5-7) is connected to the motor mounting seat (5-9); an in-place induction sheet (5-8-3) matched with the in-place sensor (5-7) is arranged on the peripheral wall of the eccentric wheel (5-8-2).